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Synthesis of a New Organic Supermolecule Succeeded
From left to right: Prof.Stoddart, Prof.Goddard and Prof.Jang Wook Choi
KAIST EEWS graduate school’s research team led by Prof. Stoddart, Prof. Goddard and Prof. Jang Wook Choi has succeeded the synthesis of a new organic supermolecule that is stable in a radical condition under room temperature.
Prof. Stoddart, who mainly led this research, is the world’s great scholar on orgaic molecular structure especially on catenane with an interconnection of several ring structures. Catenane is originated from Latin “catenane” referring to “chain”. The brief structure of the synthesized catenane is as following:
Usually radicals are known to be unstable since they are electronically neutral and have very high reactivity. However, the radicals from this research showed air- and water- stability. It also showed a reversible change in oxidation number from o to +8 through chemical/electrochemical oxidation-reduction reaction. The phenomenon where paramagnetic and diamagnetic characteristics change according to the oxidation number has also been observed.
Thus, the research like this - on the molecules showing various characteristics with stable radical - is expected to give a new direction to the next-generation electromemory system, semiconductor and energy storage system research.
Meanwhile, this research, led by Prof.Stoddart team with Prof.Goddard and Prof. Jang Wook Choi’s team, is conducted under the support of Science and Technology’s World Class University project by Ministry of Education and published in ‘Science’ on 25th of Jan.
2013.02.24 View 9935 -
KAIST to be Nominated as the Top 100 Innovators
A total of 7 South Korean universities, research institutes, and corporates, including KAIST, POSTECH, and Korean Research Institute of Chemical Technology, have been selected as the 2012 Top 100 Global Innovative Organizations.
In particular, universities were part of the list for the first time in 2012, with two South Korean universities, KAIST and POSTECH, being the only entities representing their category.
Thomson Reuters, the world"s leading media and financial-data firm, has announced a report entitled "2012 Thomson Reuters Top 100 Global Innovative Organizations", which includes KAIST and 6 other South Korean institutes, corporates, and universities.
Thomson Reuters has been publishing an annual report since last year that selects the Top 100 Global Innovative Organizations by analyzing quantitative and qualitative data through original methods and criteria such as ▲the ratio of published patent applications to granted patents, ▲the number of innovative patents that have quadrilateral patents in their patent families, ▲the number of citations to each organizations" patents, excluding self-citations, and ▲the generation of a sizable amount of innovation.
According to the most recent report, 47 American corporates and 21 European corporates have been selected as the Top 100 Global Innovative Organizations. Japan was the leading nation in the continent of Asia with 25 listed corporates, while 7 corporates, research institutes, and universities, including KAIST, have been selected from South Korea.
Besides, POSTECH, Korea Research Institute of Science and Technology, Korea Electronics Technology Institute, LSIS, LG Electronics, and Samsung Electronics were the 6 other South Korean organizations that are included in the list.
Doo Won-soo, chief of Public Relations Department of KAIST, said "Thomson Reuter"s selection of innovative organizations demonstrates that KAIST is an organization that puts great efforts for the development of advanced technologies and innovative research," also reminding that KAIST earned the 5th position by World Intellectual Property Organization (WIPO), an agency of the United Nations, among universities worldwide with applications for international patents.
Meanwhile, Thomson Reuters is the world"s leading media and financial-data firm that offers valuable intelligent information to CEO"s and experts in the vast fields of finance, banking, legislation, taxation, accounting, intellectual properties, science, and media.
Reports from Thomson Reuters are also accounted in the assessment of Times Higher Educations (THE), the British organization for world university rankings. The head office of Thomson Reuters is currently in New York, USA, with a total of 60,000 employees working overseas.
2012.12.21 View 8391
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KAIST 63rd in 2012 QS World University Ranking
KAIST was ranked 63rd in the 2012 World University Ranking conducted by British University Ranking Institution Quacquarelli Symonds.
The result is an all-time high for KAIST and a quantum leap of 135 places from 198th in 2006.
The criteria are: Student Evaluation (40%), Industry Evaluation (10%), Dissertation Citation per Professor (20%), Professor to Student Ratio (20%), Ratio of Foreign Students (5%), and Professor Ratio (5%).
The most notable improvement was in the ‘Academic Reputation’ criteria where KAIST scored 85.1 points and recorded 68th in the world, an improvement of 17 places from last year.
The Engineering College was ranked 24th, Natural Science College was ranked 48th, Biological Science College was ranked 110th, demonstrating that KAIST has now been established as a world class research oriented university.
The 2012 QS World University Ranking ranked MIT as the best university in the world followed by Cambridge, Harvard, ULC, and Oxford.
Domestically Seoul National University was ranked highest at 37th followed by KAIST (63rd), POSTECH (97th), Yonsei University (112th), Korea University (137th), and Sungkyunkwan University (179th) in the top 200 places.
2012.09.22 View 9060
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KAIST researchers verify and control the mechanical properties of graphene
KAIST researchers have successfully verified and controlled the mechanical properties of graphene, a next-generation material. Professor Park Jung Yong from the EEWS Graduate School and Professor Kim Yong Hyun from the Graduate School of Nanoscience and Technology have succeeded in fluorinating a single atomic-layered graphene sample and controlling its frictional and adhesive properties. This is the first time the frictional properties of graphene have been examined at the atomic level, and the technology is expected to be applied to nano-sized robots and microscopic joints.
Graphene is often dubbed “the dream material” because of its ability to conduct high amounts of electricity even when bent, making it the next-generation substitute for silicon semiconductors, paving the way for flexible display and wearable computer technologies. Graphene also has high potential applications in mechanical engineering because of its great material strength, but its mechanical properties remained elusive until now.
Professor Park’s research team successfully produced individual graphene samples with fluorine-deficiency at the atomic level by placing the samples in Fluoro-xenon (XeF2) gas and applying heat. The surface of the graphene was scanned using a micro probe and a high vacuum atomic microscope to measure its dynamic properties.
The research team found that the fluorinated graphene sample had 6 times more friction and 0.7 times more adhesiveness than the original graphene. Electrical measurements confirmed the fluorination process, and the analysis of the findings helped setup the theory of frictional changes in graphene.
Professor Park stated that “graphene can be used for the lubrication of joints in nano-sized devices” and that this research has numerous applications such as the coating of graphene-based microdynamic devices.
This research was published in the online June edition of Nano Letters and was supported by the Ministry of Science, Technology, and Education and the National Research Foundation as part of the World Class University (WCU) program.
2012.07.24 View 14153 -
Biomimetic reflective display technology developed
Professor Shin Jung Hoon
The bright colors of a rainbow or a peacock are produced by the reflection and interference of light in transparent periodic structures, producing what is called a structural color. These colors are very bright and change according to the viewing angle. On the other hand, the wings of a morpho-butterfly also have structural colors but are predominantly blue over a wide range of angles. This is because the unique structure of the morpho-butterfly’s wings contains both order and chaos.
Professor Shin Jung Hoon’s team from the Department of Physics and the Graduate School of Nanoscience and Technology at KAIST produced a display that mimics the structure of the morpho-butterfly’s wings using glass beads.
This research successfully produced a reflective display (one that reflects external light to project images), which could be used to make very bright displays with low energy consumption. This technology can also be used to make anti-counterfeit bills, as well as coating materials for mobile phones and wallets.
The structure of the morpho-butterfly’s wings seems to be in periodic order at the 1-micrometer level, but contains disorder at the 100-nanometer level. So far, no one had succeeded in reproducing a structure with both order and disorder at the nanometer level.
Professor Shin’s team randomly aligned differently sized glass beads of a few hundred nanometers to create chaos and placed a thin periodic film on top of it using the semiconductor deposition method, thereby creating the morpho-butterfly-like structure over a large area.
This new development produced better color and brightness than the morpho-butterfly wing and even exhibited less color change according to angle. The team sealed the film in thin plastic, which helped to maintain the superior properties whilst making it more firm and paper-like.
Professor Shin emphasized that the results were an exemplary success in the field of biomimetics and that structural colors could have other applications in sensors and fashion, for example.
The results were first introduced on May 3rd in Nature as one of the Research Highlights and will be published in the online version of the material science magazine, Advanced Materials.
This research was jointly conducted by Professor Shin Jung Hoon (Department of Physics / Graduate School of Nanoscience and Technology at KAIST), Professor Park NamKyoo (Department of Electrical and Computer Engineering at Seoul National University), and Samsung Advanced Institute of Technology. The funding was provided by the National Research Foundation of Korea and the Ministry of Education, Science and Technology as part of the World Class University (WCU) project.
Figure 2. The biomimetic film can express many different colors
Figure 3. The biomimetic diplay and a morpho-butterfly
2012.05.07 View 13374 -
Attosecond pulses measure ultrafast photoionization processes by Laser Focus World, April 12, 2012
Laser Focus World, a monthly magazine published since 1965 that covers news and business developments on laser, photonics, and optoelectronics technologies, applications, and markets, released a news article on the recent research result by Professor Chang-Hee Nam from the Department of Physics. For the article, please follow the link below:
http://www.laserfocusworld.com/articles/2012/04/kaist-attosecond
2012.04.13 View 7510
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10 Technolgies to Change the World in 2012: The Future Technology Global Agenda Council
The Future Technology Global Agenda Council which is under the World Economy Forum and which KAIST’s biochemical engineering department’s Prof. Sang Yeob Lee is the head of, chose the 10 new technologies that will change the world in year 2012.
The ten technologies include: IT, synthetic biology and metabolic engineering, Green Revolution 2.0, material construction nanotechnology, systematic biology and the simulation technology of biological systems, the technology to use CO2 as a natural resource, wireless power transmission technology, high density energy power system, personalized medical/nutritional/disease preventing system, and new education technology.
The technologies were chosen on the basis of the opinions various science, industry, and government specialists and is deemed to have high potential to change the world in the near future.
The Future Technology Global Agenda Council will choose ten new technologies yearly starting this year in order to solve the problems the world now faces.
The informatics systems that was ranked 1st place, sifts only the data necessary for decision making out of the overflowing amount of data. Much interest has been spurred at the Davos forum.
The synthetic biology and metabolic engineering chosen is expected to play an important role in creating new medicines and producing chemical substances and materials from reusable resources.
Biomass has also been chosen as one of the top ten most important technologies as it was seen to be necessary to lead the second Green Revolution in order to stably provide food for the increasing population and to create bio refineries.
Nanomaterials structured at the molecular level are expected to help us solve problems regarding energy, food, and resources.
Systematic biology and computer modeling is gaining importance in availing humans to construct efficient remedies, materials, and processes while causing minimum effects on the environment, resource reserves, and other people.
The technology to convert CO2, which is considered a problem all over the world, into a useful resource is also gaining the spotlight
Together with such technologies, wireless power transmission technology, high density energy power system, personalized medical/nutritional/disease preventing system, and new education technology are also considered the top ten technologies to change the world.
Prof. Lee said, “Many new discoveries are being made due to the accelerating rate of technological advancements. Many of the technologies that the council has found are sustainable and important for the construction of our future.”
2012.04.04 View 10265
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University World News, EU and South Korea agree to deepen research cooperation, April 1, 2012
The University World News, an online news site that focuses on the news and analysis, developments, and events and announcements of global higher education, published an article on the latest agreement made between South Korea and the European Union for the research collaboration of the universities in the two nations. For the article, please go to http://www.universityworldnews.com/article.php?story=2012040108141720.
University World News
EU and South Korea agree to deepen research cooperation
By David Howarth, April 1, 2012
2012.04.02 View 9422
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2012 Reputation Rankings of World Universities by Times Higher Education--KAIST in 81-90
KAIST listed among the world’s most reputable 100 universities
Ranked in the 81st to 90th
The Times Higher Education (THE), a weekly magazine headquartered in London reporting news and issues related to higher education and publishing annually its “World University Rankings,” released on March 15, 2012 the rankings of global universities’ academic reputation, called “2012 World Reputation Rankings.”
KAIST was listed the 81st-90th group, moving up from the 91st to 100th last year. From Korea, only two universities, KAIST and Seoul National University (SNU), were included in the 100 most reputable universities in the world. SNU was in the 51st to 60th band of the list.
The World Reputation Rankings are based on the results of an academic reputation survey carried out by Thompson Reuters. 17,554 respondents from the global academic community from 137 countries participated in the survey of “2012 World Reputation Rankings” that was distributed in April –May 2011.
For the full list of the Times Higher Education World Reputation Rankings 2012, please visit the link, http://bit.ly/thewur.
2012.03.20 View 9598
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Distinguished Professor Sang-Yeop Lee gave keynote speech in '2011 China Bio-Refinery Summit'
Distinguished Professor Sang-Yeop Lee gave keynote speech in ‘2011 China Bio-Refinery Summit’ held in Chang’an, Beijing
Professor Lee gave a lecture on the vitalization strategy of ‘Bio-Refinery’, which is ‘A bio-based chemical industry to replace fossil fuel-based petro chemistry.
Professor Lee, insisted that for the successful construction of ‘Bio-Refinery’, there should be innovation in all value chain of biomass; biomass producer, bio-refinery business, consumer, government, etc. ▲Securement and distribution of Biomass ▲Development of strain and process for fermentation separation to effectively change biomass into chemical substance and fuel ▲Optimization of transportation and marketing.
During this summit, high-ranking government officials in politics and economics, executives of multicultural and Chinese business participated. From Korea, Do-Young Seung of Manager of technology research of GS and Hang-Deok Roh of laboratory chief of SK Chemical participated as panelist.
World Economy Forum, the gathering of leaders and experts in politics, economics, and policy created a ‘Global Agenda Council’ to find solutions on the issue of ‘sustainable growth of environment of the Earth and humanity’. Professor Lee is the chairperson of ‘Emerging Technologies Global Agenda Council (GAC)’ of Word Economy Forum.
Professor Lee, founder of ‘Systems Metabolic Engineering’, has made remarkable achievements world-wide, including a technology that manipulates metabolic circuit of microorganisms to purify various crude-originated chemical substances into environmentally friendly substances.
Currently, he is working on Systems biology research business in Ministry of Education, Science and Technology, Global Frontier Biomass business, Global Frontier Intelligent Bio-system construction and composition, to make progress in metabolic engineering which is essential for the bio-chemical industry.
2012.03.06 View 10839
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Professor Sang-Min Bae appears on EBS Global Theme Travel.
"We want to present "hope" by designing schools and homes for the third-world countries, while considering the culture of the nation.”
Professor Bae and his team went to Ethiopia, Africa, for "Design for Social Donation and Design Research for isolated third-world nations".
Professor Bae commented that, "We have visited for preparatory investigation, experiencing and investigating the life and cultures of the third-world nations in order to design schools and homes."
He continued, "From this visit, we want to develop adequate technology catered for the locals and create a design guideline." He added "We also want to propose a new model using design and technology that contributes to social welfare".
Meanwhile, EBS team accompanied to cover the report and was broadcasted through "EBS Global Theme Travel.
2012.03.06 View 7865
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Creating a Happy Campus Exhibiting Creativity
Nam-Pyo Seo, president of KAIST, had breakfast meeting with twenty students in the school hall.
- Two hundred people were provided with food in school cafeteria, a meeting to encourage the members, emphasizing organizational culture
The president said “the year 2012 is the year for KAIST to broaden our horizons and jump out to the world” and that we should “encourage and cooperate with each other so that the school can be a base for maximizing student talent and creativity.”
The president had the meeting with twenty students insisting that collectively we should, “build an ethical culture of KAIST, and dedicate ourselves on doing what’s right.
President Seo, recalled year 2011 as “A year that took a toll on all of the members”. He evaluated that “Despite the hardship, it was a meaningful year as the school took another step towards reaching the World Class University status, with reinforcement of the school and visualization of the technology developments like the improvement of papers and research, Online Electronic Car and Mobile Harbor.”
He continued, “We will strive for the not only the advanced education and improved lab environment, but also strive to construct a hub for student culture like the ‘Cutting edge central library’.
Students participated in the meeting braced themselves with an iron will for 2012, sharing their worries and expectations of the year.
Min-Gi Kim, a senior in mechanical engineering, “The reason I participated is, that the last four years of innovative changes of KAIST, such as the changes in the interview for examination, were reasonable and thought that it was worth discussing with the colleagues.”
The day’s meeting was prepared to comfort the students who spend the year-end and New Years in the school. Through the online school community ‘Portal’, students who have volunteered for the meeting of the president were selected in order and had meeting in the hall for two hours.
Meanwhile, on twelfth last month, the president had lunch meeting with thirty student councils of 2012, emphasized the importance on the partnership among the members, “Let’s bring our hearts together, with the culture of ‘communication’, let’s create a World Class university, and a happy campus,”
2012.03.06 View 7567